Carbon-cutter



n. 0. HUMAN.

CARBON CUTTER.

APPLICATION FILED JAN. 5, I920.

Patented Nov. 2, 1920.

FIGI,

FIG. 2

UNITED STATES PATENT OFFICE.

CARBON-CUTTER.

Specification of Letters Patent.

Patented Nov. 2, 1920.

Application filed. January 5, 1920. Serial No. 349,650.

To all whom it may concern:

Be it known that 1, DAVID D. GnTuAN, a citizen of the United States, and a resident of the town of White Butte, in the county of Perkins and State of South Dakota, have invented a new and useful Improvement in Carbon-Cutters, and do hereby declare that the following is a full, clear, and exact description of the same.

My present invention has for its object to provide a highly eflicient carbon cutter and remover intended for general use, in cutting and removing the carbon from the combustion chambers of gasolene and kerosene engines.

To the above end, generally stated, the invention consists of the novel device hereinafter described and defined in the claim.

In the accompanying drawings, which illustrate the invention, like characters indicate like parts.

Referring to the drawings:

Figure 1 represents a perpendicular side view of a cylindrical piece of metal through which there is a square hole as shown in Fig. 2.

Fig. 2 represents an end view of Fig. 1.

Referring to numerals:

8 in Fig. 2 represents a square hole through the center of the cylindrical piece of metal, 7 in Fig. 2 represents the thick ness of wall at each corner of the square hole through the said cylindrical piece of metal, 9 in Fig. 2 represents the thickness of the wall on the side of the square hole through the cylindrical piece of metal.

Operation.

My invention known as carbon cutters, can be used very successfully for cutting and removing the carbon from the combustion chambers of gasolene and kerosene engines. The carbon cutters are put into the combustion chambers of the engine by re moving the spark plug and dropping one or more of the carbon cutters down into the freeing the combustion chamber from all carbon which has gathered or formed on the inside of same.

The square hole through the cylindrical piece of metal makes the walls of the carbon cutters which are at an angle to each other thinner at 7 than they are at 9 and the continuous bouncing of the carbon cutters causes them to wear through at 7 or become so thin that they crush at this point and after they have worn through or crushed at '7 they are small enough that they are discharged through the exhaust valves. Hence it will be seen that the carbon cutters once placed in the combustion chambers of an engine need not be removed as they remove themselves after completing their work.

What I claim is:

A carbon cutter, for the removing of carbon from the cylinders of internal combustion engines comprising a cylindrical piece of metal, having a central opening longitudinally thereof, the walls of which are at an angle to each other.

Signed at White Butte, South Dakota, this twenty-seventh day of December, nineteen hundred and nineteen.

'DAVID :o. GETMAN.

Signed in the presence of-- MARION BARRETT, Jnssn WILSON. 

